P R E C I S I O N 3 D R E S I N S

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1 PRECISION 3D RESINS

2 We Are Keystone 100 YEARS IN DENTAL Dental manufacturer of innovative operatory, laboratory, and preventive dental products since 1908 Holder of more than 45 granted and pending patents State-of-the-art research and development 25-year industry leader light-cured product industry technologies 25 YEARS AS A MANUFACTURER OF PHOTOPOLYMERS Branded and private label supplier FDA-licensed and ISO certified Certified manufacturing sites in PA and NJ exceed 400,000 combined square feet

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4 Our KeyPrint Journey In an industry that is increasingly defined by the ability to innovate, adapt, and produce consistent results, Keystone Industries introduced KeyPrint in 2018, a line of precision 3D resins specifically formulated for the dental industry. Keystone has combined its unique blend of dental and photopolymer expertise to deliver the highest quality 3D printing resins to the dental market. Entirely designed and produced in the USA, the full KeyPrint line is available throughout North America, Europe, and other global territories. Keyprint resins are compatible with DLP printers (wavelengths of nm). Keystone is profiling 3D printers on an ongoing basis to ensure our KeyPrint resins work reliably in multiple open-source printers. DELL DINE, COO OF 3D DDS Prioritizing patient safety, KeyPrint resins are subjected to a battery of biocompatibility tests in accordance with global regulatory standards. Each biocompatible print complies with international standards to ensure efficacy and effectiveness for the patient. Keyprint s robust formulations guarantee a twoyear shelf life, along with color stability and stain resistance.

5 Safe and Effective Biocompatible Resins PRECISION 3D RESINS

6 KEYPRINT : PRECISION 3D RESINS

7 PAGE 7 KeySplint Soft Utilizing unique patent-pending technologies, Keystone Industries has developed a one-of-a-kind 3D printing resin for the fabrication of flexible dental splints and nightguards. This DLP-optimized resin is an exceptional printing material, that combines the strength needed to protect teeth against disorders like bruxism with added flexibility for better patient comfort. KeySplint Soft is also resistant to stains and easily cleaned by the patient. KeySplint Soft is fully biocompatible, and is in compliance with international medical device regulations and standards. The robust formulation has two years of guaranteed shelf life, is color stable, and is validated in multiple open-source printers. No other dental splint resin can deliver the quality and performance of KeySplint Soft. PROPERTY PROCEDURE KEYSPLINT SOFT Flexural Strength ASTM D Flexural Modulus ASTM D Tensile Strength ASTM D Young s Modulus Tensile ASTM D Water Sorption ISO <84.8 µg/mm 3 Biocompatible Transparent Polishable Stain-resistant # KeySplint Soft, 35.3 oz (1 kg) Biocompatibility ISO Pass and USP Class VI Patent-pending & 510k-pending

8 KEYPRINT : PRECISION 3D RESINS KeyGuide KeyGuide is ideal for fabricating transparent surgical guides, which enable the placement of implants at a precise angle and depth. Strong without brittleness Biocompatible Easy to polish Autoclavable and color stable # KeyGuide, 35.3 oz (1 kg)

9 PAGE 9 AS STRONG AS IT GETS! Flexural Strength (MPa) Formlabs, Bego Dreve, EnvisionTEC, Stratasys Kulzer NextDent Whipmix KeyGuide KeyGuide resin is a perfect fit for our laboratory. The material prints quickly and accurately in our 3D printer and polishes Flexural Modulus (MPa) Formlabs, Bego Dreve, Whipmix Kulzer EnvisionTEC, NextDent Stratrays KeyGuide to a beautiful high luster shine. Our doctors are loving it! KEN KINCAID - CDT, RG, TE

10 KEYPRINT : PRECISION 3D RESINS KeySplint Hard KeySplint Hard is a rigid dental splint used for the fabrication of orthodontic and dental appliances such as splints, bite planes, mouthguards, nightguards, snoring appliances, retainers and repositioners. This device is indicated for the protection against bruxism (nighttime teeth grinding) and for relief of TMD/ TMJ symptoms Biocompatible Strong and transparent Coming soon: KeySplint Hard, 35.3 oz (1 kg)

11 Lab Reliable and Consistent Laboratory Resins PRECISION 3D RESINS

12 KEYPRINT : PRECISION 3D RESINS KeyModel KeyModel produces highly precise and accurate dental models. Its low shrinkage formulation makes it an ideal resin for: Crown, bridge, and implant models Orthodontic clear aligner models Diagnostic modeling Colored for easy visibility of margins and tooth anatomy Carvable without chipping Pairs perfectly with KeyMask # KeyModel, 35.3 oz (1 kg) Pairs perfectly with: Machine III Mouthguards Check out our line of Proform thermoforming materials at dental.keystoneindustries.com for your bleaching tray, retainer, splint & mouthguard needs.

13 PAGE 13 KeyOrthoModel KeyOrthoModel is designed for high-speed and accurate prints. Perfect for thermoforming aligners and orthodontic devices. # KeyOrthoModel, 35.3 oz (1 kg) PROPERTY PROCEDURE KEYMODEL & KEYORTHOMODEL Flexural Strength (MPa) ASTM D Flexural Modulus (MPa) ASTM D Tensile Strength ASTM D Young's Modulus (MPa) ASTM D Elongation at break % ASTM D % Shore Hardess (D) Scale D 86

14 KEYPRINT : PRECISION 3D RESINS

15 PAGE 15 KeyCast PROPERTY PROCEDURE KEYCAST KeyCast is compatible with rapid burnout and gradual temperature ramp workflows, with no residual ash. KeyCast is used with chrome, cobalt, gold, and silver Low shrinkage formula controls thermal expansion to yield porous-free and accurate castings # KeyCast, 35.3 oz (1 kg) Flexural Strength (MPa) ASTM D Flexural Modulas (MPa) ASTM D Tensile Strength (MPa) ASTM D Young s Modulus (MPa) ASTM D Elongation at break (%) ASTM D638 16% CTE C ( F) ASTM E x 10-6 m/(m. C) CTE C ( F) ASTM E x 10-6 m/(m. C) CTE >250 C (>482 F) ASTM E831 <0m/(m. C) Shrinkage ASTM D792 <2% Burnout <0.05% Pairs perfectly with: Check out our full line of dental casting rings, waxes, mixing bowls and other accessories at Casting Rings Sprue Wax Green Flexiboles Microtorch dental.keystoneindustries.com.

16 KEYPRINT : PRECISION 3D RESINS KeyMask PROPERTY PROCEDURE KEYMASK Tensile Strength (MPa) ASTM D638 2 Young's Modulus (MPa) ASTM D Flexible yet firm gingival mask that simulates the look and feel of gum tissue Incorporate KeyMask in your digital restoration planning Easily trimmed to create a proper emergence profile or sculpted for proper pontic shape # KeyMask, 17.6 oz (0.5 kg) Elongation at break (%) ASTM D638 41%

17 PAGE 17 Accessories Everything you need to work with

18 KEYPRINT : ACCESSORIES & COMPATIBLES Products included in the Keyprint Kit Denture 3D Baskets # Microfiber Cloth # Professional Sprue Cutter # Stiff Putty Knife 11/2" # Pro Wood Chisel 11/2" # Wash Bottle 250 ml. # Small Bowl Scrape # Tekton Mallet 8 oz. # /2" Bristle Brush # /2" Bristle Brush # Scratch.016 Nylon Brush 6" Point Curved Tweezers # # Compatible Products Isopropyl Alcohol, 99% CAD/CAM Scanning Spray Microtorch Green Flexiboles* Machine III* Keystone Pro-Form & Vacuum Forming Materials* High Gloss Ortho Boxes* Sprue Wax* Casting Rings* * For our full line of dental & 3D printing accessories, visit dental.keystoneindustries.com

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20 480 South Democrat Road, Gibbstown, NJ USA Stockholzstr. 11, Singen, Gerrmany keystoneindustries.com PRECISION 3D RESINS